checkservlet.java

jsp+servlet+javaBean实现MVC

package com.wang.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.wang.bean.*;


public class CheckServlet
    extends HttpServlet
{
    private static final String CONTENT_TYPE = "text/html; charset=GBK";


    //Initialize global variables
    public void init()
        throws ServletException
    {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws
        ServletException, IOException
    {
        if (request.getParameter("userName") != null &&
            request.getParameter("userPwd") != null)
        {
            String userName = request.getParameter("userName");
            String userPwd = request.getParameter("userPwd");
            DataBean db = new DataBean();
            UserBean ub=db.checkUsersLogin(userName, userPwd);
            request.getSession().setAttribute("user",ub);
            response.sendRedirect("index.jsp");
        }
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws
        ServletException, IOException
    {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy()
    {
    }
}